[SciPy-user] howto construct matrix A: dot(A.T, A) is positive-definite

Dominique Orban dominique.orban@gmail....
Fri Oct 5 10:33:40 CDT 2007


On 10/5/07, dmitrey <dmitrey.kroshko@scipy.org> wrote:

> Maybe it's because I comment those lines of using colmmd func (Sparse
> column    minimum degree permutation)-
> can it be the reason?

No. This only affects sparsity of the Cholesky factors.

Dominique


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